When nonvirulent bacteria were mixed with dead virulent bacteria, griffith unexpectedly found that the injected mice died. He explained this behavior by suggesting the nonvirulent strain of bacteria as being.

What percentage of the earth's water is available for use by living things?

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.

Which early modernism trend in art focused on prehistoric or exotic cultures? a. primitivism b. expressionism c. impressionism d. total serialism